feat(chat): load model options from backend

src/components/chat/AgentComposer.tsx

@@ -28,6 +28,7 @@ import BoltRounded from "@mui/icons-material/BoltRounded";
 import AutoAwesomeRounded from "@mui/icons-material/AutoAwesomeRounded";
 import VerifiedUserRounded from "@mui/icons-material/VerifiedUserRounded";
 import AdminPanelSettingsRounded from "@mui/icons-material/AdminPanelSettingsRounded";
+import type { AgentModelOption } from "@/lib/chatModels";
 import type { AgentApprovalMode, AgentModel } from "@/lib/chatStream";
 
 export type AgentComposerHandle = {
@@ -48,12 +49,23 @@ type AgentComposerProps = {
   onAbort: () => void;
   onStartListening: () => void;
   onStopListening: () => void;
-  selectedModel: AgentModel;
+  modelOptions: AgentModelOption[];
+  selectedModel?: AgentModel;
   onModelChange: (model: AgentModel) => void;
   approvalMode: AgentApprovalMode;
   onApprovalModeChange: (mode: AgentApprovalMode) => void;
 };
 
+const renderModelIcon = (
+  icon: AgentModelOption["icon"] | undefined,
+  props?: React.ComponentProps<typeof BoltRounded>,
+) =>
+  icon === "bolt" ? (
+    <BoltRounded {...props} />
+  ) : (
+    <AutoAwesomeRounded {...props} />
+  );
+
 export const AgentComposer = React.forwardRef<AgentComposerHandle, AgentComposerProps>(function AgentComposer({
   isHydrating = false,
   isStreaming,
@@ -64,6 +76,7 @@ export const AgentComposer = React.forwardRef<AgentComposerHandle, AgentComposer
   onAbort,
   onStartListening,
   onStopListening,
+  modelOptions,
   selectedModel,
   onModelChange,
   approvalMode,
@@ -74,6 +87,7 @@ export const AgentComposer = React.forwardRef<AgentComposerHandle, AgentComposer
   const [input, setInput] = React.useState("");
   const [isPresetOpen, setIsPresetOpen] = React.useState(false);
   const canSend = input.trim().length > 0 && !isStreaming && !isHydrating;
+  const selectedModelOption = modelOptions.find((model) => model.id === selectedModel);
 
   React.useImperativeHandle(
     ref,
@@ -347,19 +361,21 @@ export const AgentComposer = React.forwardRef<AgentComposerHandle, AgentComposer
             <Stack direction="row" spacing={1} alignItems="center">
               <FormControl size="small" sx={{ minWidth: 80 }}>
                 <Select
-                  value={selectedModel}
+                  value={selectedModel ?? ""}
                   onChange={(event) => onModelChange(event.target.value as AgentModel)}
-                  disabled={isHydrating || isStreaming}
+                  disabled={isHydrating || isStreaming || modelOptions.length === 0}
                   aria-label="模型选择"
-                  renderValue={(val) => (
+                  renderValue={() => (
-                    <Box sx={{ display: 'flex', alignItems: 'center', gap: 0.5 }}>
+                    <Box sx={{ display: "flex", alignItems: "center", gap: 0.5 }}>
-                      {val === "deepseek/deepseek-v4-flash" ? (
+                      {renderModelIcon(selectedModelOption?.icon, {
-                        <BoltRounded sx={{ fontSize: 18, color: "inherit", transition: "color 0.2s" }} />
+                        sx: {
-                      ) : (
+                          fontSize: selectedModelOption?.icon === "bolt" ? 18 : 16,
-                        <AutoAwesomeRounded sx={{ fontSize: 16, color: "inherit", transition: "color 0.2s" }} />
+                          color: "inherit",
-                      )}
+                          transition: "color 0.2s",
+                        },
+                      })}
                       <Typography sx={{ fontSize: "0.8rem", fontWeight: 600, color: "inherit", transition: "color 0.2s" }}>
-                        {val === "deepseek/deepseek-v4-flash" ? "快速" : "专家"}
+                        {selectedModelOption?.label ?? "模型"}
                       </Typography>
                     </Box>
                   )}
@@ -433,30 +449,25 @@ export const AgentComposer = React.forwardRef<AgentComposerHandle, AgentComposer
                   }}
                 >
                   <Box sx={{ px: 2, py: 1.5, pb: 1, display: "flex", alignItems: "center", gap: 1, pointerEvents: "none" }}>
-                    <Box
+                    <AutoAwesomeRounded sx={{ width: 16, height: 16, color: "text.secondary", flexShrink: 0 }} />
-                      component="img"
-                      src="/deepseek-logo.svg"
-                      alt="DeepSeek"
-                      sx={{ width: 16, height: 16, display: "block", flexShrink: 0 }}
-                    />
                     <Typography sx={{ fontSize: "0.75rem", fontWeight: 700, color: "text.secondary", letterSpacing: 0.5 }}>
-                      DEEPSEEK V4
+                      模型选择
                     </Typography>
                   </Box>
-                  <MenuItem value="deepseek/deepseek-v4-flash">
+                  {modelOptions.map((model) => (
-                    <BoltRounded className="icon" sx={{ mr: 1.5, mt: 0.2, fontSize: 20, color: "text.secondary", transition: "color 0.2s" }} />
+                    <MenuItem key={model.id} value={model.id}>
+                      {renderModelIcon(model.icon, {
+                        className: "icon",
+                        sx: { mr: 1.5, mt: 0.2, fontSize: model.icon === "bolt" ? 20 : 18, color: "text.secondary", transition: "color 0.2s" },
+                      })}
                       <Box>
-                      <Typography className="title" sx={{ fontSize: "0.85rem", fontWeight: 700, color: "text.primary", mb: 0.2, transition: "color 0.2s" }}>快速</Typography>
+                        <Typography className="title" sx={{ fontSize: "0.85rem", fontWeight: 700, color: "text.primary", mb: 0.2, transition: "color 0.2s" }}>{model.label}</Typography>
-                      <Typography sx={{ fontSize: "0.7rem", fontWeight: 500, color: "text.secondary", lineHeight: 1.3 }}>快速回答和任务执行</Typography>
+                        {model.description ? (
-                    </Box>
+                          <Typography sx={{ fontSize: "0.7rem", fontWeight: 500, color: "text.secondary", lineHeight: 1.3 }}>{model.description}</Typography>
-                  </MenuItem>
+                        ) : null}
-                  <MenuItem value="deepseek/deepseek-v4-pro">
-                    <AutoAwesomeRounded className="icon" sx={{ mr: 1.5, mt: 0.2, fontSize: 18, color: "text.secondary", transition: "color 0.2s" }} />
-                    <Box>
-                      <Typography className="title" sx={{ fontSize: "0.85rem", fontWeight: 700, color: "text.primary", mb: 0.2, transition: "color 0.2s" }}>专家</Typography>
-                      <Typography sx={{ fontSize: "0.7rem", fontWeight: 500, color: "text.secondary", lineHeight: 1.3 }}>探索、解决复杂任务</Typography>
                       </Box>
                     </MenuItem>
+                  ))}
                 </Select>
               </FormControl>
 

src/components/chat/GlobalChatbox.tsx

@@ -10,6 +10,7 @@ import { Box, Drawer, alpha, useTheme } from "@mui/material";
 import { useNotification } from "@refinedev/core";
 
 import { getAccessToken } from "@/lib/authToken";
+import { fetchAgentModels, type AgentModelOption } from "@/lib/chatModels";
 import type { AgentApprovalMode, AgentModel } from "@/lib/chatStream";
 import { useProjectStore } from "@/store/projectStore";
 import { AgentComposer, type AgentComposerHandle } from "./AgentComposer";
@@ -28,9 +29,8 @@ export const GlobalChatbox: React.FC<Props> = ({ open, onClose }) => {
   const [isResizing, setIsResizing] = useState(false);
   const [isHistoryOpen, setIsHistoryOpen] = useState(false);
   const [isCheckingAuth, setIsCheckingAuth] = useState(false);
-  const [selectedModel, setSelectedModel] = useState<AgentModel>(
+  const [modelOptions, setModelOptions] = useState<AgentModelOption[]>([]);
-    "deepseek/deepseek-v4-flash",
+  const [selectedModel, setSelectedModel] = useState<AgentModel | undefined>(undefined);
-  );
   const [approvalMode, setApprovalMode] =
     useState<AgentApprovalMode>("request");
 
@@ -62,6 +62,36 @@ export const GlobalChatbox: React.FC<Props> = ({ open, onClose }) => {
     isSupported: isSttSupported,
   } = useSpeechRecognition(handleSpeechResult);
 
+  useEffect(() => {
+    let cancelled = false;
+
+    const loadModels = async () => {
+      try {
+        const modelConfig = await fetchAgentModels();
+        if (cancelled) return;
+        setModelOptions(modelConfig.models);
+        setSelectedModel((current) => {
+          if (current && modelConfig.models.some((model) => model.id === current)) {
+            return current;
+          }
+          return modelConfig.defaultModel;
+        });
+      } catch (error) {
+        console.error("[GlobalChatbox] Failed to load agent models:", error);
+        if (!cancelled) {
+          setModelOptions([]);
+          setSelectedModel(undefined);
+        }
+      }
+    };
+
+    void loadModels();
+
+    return () => {
+      cancelled = true;
+    };
+  }, []);
+
   const handleToolCall = useAgentToolActions();
   const {
     messages,
@@ -372,6 +402,7 @@ export const GlobalChatbox: React.FC<Props> = ({ open, onClose }) => {
               onAbort={abort}
               onStartListening={startListening}
               onStopListening={stopListening}
+              modelOptions={modelOptions}
               selectedModel={selectedModel}
               onModelChange={setSelectedModel}
               approvalMode={approvalMode}

src/components/chat/hooks/useAgentChatSession.types.ts

@@ -11,7 +11,7 @@ export type UseAgentChatSessionOptions = {
     },
   ) => void;
   onBeforeSend?: () => void;
-  getModel?: () => AgentModel;
+  getModel?: () => AgentModel | undefined;
   getApprovalMode?: () => AgentApprovalMode;
 };
 

src/lib/chatModels.test.ts

@@ -0,0 +1,65 @@
+import { fetchAgentModels } from "./chatModels";
+
+const apiFetch = jest.fn();
+
+jest.mock("@/lib/apiFetch", () => ({
+  apiFetch: (...args: unknown[]) => apiFetch(...args),
+}));
+
+describe("fetchAgentModels", () => {
+  beforeEach(() => {
+    apiFetch.mockReset();
+  });
+
+  it("loads model options and backend default model", async () => {
+    apiFetch.mockResolvedValueOnce({
+      ok: true,
+      json: async () => ({
+        default_model: "deepseek/deepseek-v4-flash",
+        models: [
+          {
+            id: "deepseek/deepseek-v4-flash",
+            label: "快速",
+            description: "快速回答和任务执行",
+            icon: "bolt",
+          },
+        ],
+      }),
+    });
+
+    await expect(fetchAgentModels()).resolves.toEqual({
+      defaultModel: "deepseek/deepseek-v4-flash",
+      models: [
+        {
+          id: "deepseek/deepseek-v4-flash",
+          label: "快速",
+          description: "快速回答和任务执行",
+          icon: "bolt",
+        },
+      ],
+    });
+    expect(apiFetch).toHaveBeenCalledWith(
+      expect.stringContaining("/api/v1/agent/chat/models"),
+      expect.objectContaining({
+        method: "GET",
+        projectHeaderMode: "include",
+        userHeaderMode: "include",
+        skipAuthRedirect: true,
+      }),
+    );
+  });
+
+  it("falls back to the first option when default model is omitted", async () => {
+    apiFetch.mockResolvedValueOnce({
+      ok: true,
+      json: async () => ({
+        models: [{ id: "provider/model", label: "Model" }],
+      }),
+    });
+
+    await expect(fetchAgentModels()).resolves.toEqual({
+      defaultModel: "provider/model",
+      models: [{ id: "provider/model", label: "Model" }],
+    });
+  });
+});

src/lib/chatModels.ts

@@ -0,0 +1,74 @@
+import { apiFetch } from "@/lib/apiFetch";
+import { config } from "@config/config";
+
+import type { AgentModel } from "./chatStream";
+
+export type AgentModelIcon = "bolt" | "sparkle";
+
+export type AgentModelOption = {
+  id: AgentModel;
+  label: string;
+  description?: string;
+  icon?: AgentModelIcon;
+};
+
+export type AgentModelConfig = {
+  defaultModel?: AgentModel;
+  models: AgentModelOption[];
+};
+
+const isObjectRecord = (value: unknown): value is Record<string, unknown> =>
+  typeof value === "object" && value !== null && !Array.isArray(value);
+
+const normalizeModelOption = (value: unknown): AgentModelOption | null => {
+  if (!isObjectRecord(value) || typeof value.id !== "string") {
+    return null;
+  }
+  const id = value.id.trim();
+  if (!id) {
+    return null;
+  }
+  const label =
+    typeof value.label === "string" && value.label.trim()
+      ? value.label.trim()
+      : id;
+  const description =
+    typeof value.description === "string" && value.description.trim()
+      ? value.description.trim()
+      : undefined;
+  const icon =
+    value.icon === "bolt" || value.icon === "sparkle" ? value.icon : undefined;
+  return {
+    id,
+    label,
+    description,
+    icon,
+  };
+};
+
+export const fetchAgentModels = async (): Promise<AgentModelConfig> => {
+  const response = await apiFetch(`${config.AGENT_URL}/api/v1/agent/chat/models`, {
+    method: "GET",
+    projectHeaderMode: "include",
+    userHeaderMode: "include",
+    skipAuthRedirect: true,
+  });
+  if (!response.ok) {
+    throw new Error(await response.text());
+  }
+  const payload = (await response.json()) as {
+    default_model?: unknown;
+    models?: unknown[];
+  };
+  const models = (payload.models ?? [])
+    .map(normalizeModelOption)
+    .filter((model): model is AgentModelOption => Boolean(model));
+  const defaultModel =
+    typeof payload.default_model === "string" && payload.default_model.trim()
+      ? payload.default_model.trim()
+      : models[0]?.id;
+  return {
+    defaultModel,
+    models,
+  };
+};

src/lib/chatStream.test.ts

@@ -60,7 +60,7 @@ describe("streamAgentChat", () => {
 
     await streamAgentChat({
       message: "hi",
-      model: "deepseek/deepseek-v4-flash",
+      model: "provider/model",
       onEvent: (event) => events.push(event),
     });
 
@@ -73,7 +73,7 @@ describe("streamAgentChat", () => {
         body: JSON.stringify({
           message: "hi",
           session_id: undefined,
-          model: "deepseek/deepseek-v4-flash",
+          model: "provider/model",
           approval_mode: undefined,
         }),
       }),

src/lib/chatStream.ts

@@ -1,9 +1,7 @@
 import { apiFetch } from "@/lib/apiFetch";
 import { config } from "@config/config";
 
-export type AgentModel =
+export type AgentModel = string;
-  | "deepseek/deepseek-v4-flash"
-  | "deepseek/deepseek-v4-pro";
 
 export type PermissionReply = "once" | "always" | "reject";
 export type AgentApprovalMode = "request" | "always";